Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
sach duoc » sach nuoc, sach dao, sach dung
hoc nganh » hoc nhanh
sach hoi » sach doi, sach moi, cach thoi
cong hoc » dong hoc, cong hoa, cong coc
nhan van » nhan dan, nhan va, phan van
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
xa nhan » ca nhan, va nhan, xa phan
hoa » khoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach duoc) or (sach hoi)) tap, nghien cuu mon hoc nganh cong hoc ma hoa xa nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach duoc) OR (sach hoi)) tap, nghien cuu mon hoc nganh cong hoc ma hoa xa nhan van.
• Adding a wildcard symbol may retrieve word variants: tu ((sach duoc) or (sach hoi)) tap, nghien cuu mon hoc nganh cong hoc ma hoa xa nhan van*.